20462168

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1115

約数の個数: 32

約数和(自身を含む): 40176000

約数和(自身を除く): 19713832

約数列:

[1, 2, 4, 8, 29, 58, 89, 116, 178, 232, 356, 712, 991, 1982, 2581, 3964, 5162, 7928, 10324, 20648, 28739, 57478, 88199, 114956, 176398, 229912, 352796, 705592, 2557771, 5115542, 10231084, 20462168]

約数ペア:

[(1, 20462168), (2, 10231084), (4, 5115542), (8, 2557771), (29, 705592), (58, 352796), (89, 229912), (116, 176398), (178, 114956), (232, 88199), (356, 57478), (712, 28739), (991, 20648), (1982, 10324), (2581, 7928), (3964, 5162)]